Phylum Porifera Underwater Caves Uses Underwater Caves Medicine- makes toxic compounds that kill bacteria and fungi Home to marine animals (shrimp, snails, starfish) Bathing/ Cleaning Porifera= Pore Bearers Most Ancient Animal. (evolved from ?) Sessile No mouth or organs Filter Feeders

Phylum Cnideria 2 Body Forms Characteristics Polyp- vase shaped, sessile, tentacles upward Ex. Sea Anemone Medusa- Umbrella shaped, mobile, tentacles downward. Ex. Jellyfish Characteristics marine soft bodied carnivore- stinging cells/ tentacles

Roundworms Characteristics Unsegmented Round Shape Soil/ Internal Parasites Pinworms 2. Hookworms 4. Ascaris 3. Filarial Worms Elephantitis

Flatworms (platyhelminthes) Characteristics Unsegmented Flat Senses/ Body Sytems Planaria 2. Tapeworm 3. Fluke Life Cycle

Segmented Worms (Annelids) Characteristics Segmented Specialized Organs Earthworms 2. Leeches Uses of Annelids Fishing Landscapers- earthworms aerate soil Medical- leeches remove bruises

Mollusks Characteristics 1. Mantle- shell 2. Visceral Mass- organs 3. Foot- Locomotion Bivalves 2. Gastropods 3. Cephalopod

Arthropods (Joint Foot) Characteristics Segmented Bodies Exoskeleton- chitin Jointed Appendages Compound Eye Molting- losing outer skeleton Mouth Parts Most Members Crustaceans Mandible- mouth Claws Cephalothorax- fused head and neck

Arthropods Arachnid Insects Spiders Flying Mites Jumping Horseshoe Crab Insects Flying Jumping Social

Echinoderms (spiny skin) 5 part radial system Water Vascular System Madreporite Skin Gills Starfish Sea Urchin Sea Cucumber